Should have a web server/data logger for sensor data… incl..

Thanks

Ken

P.S. I absolutely love your design….

I’ve just taken a look at your code and can see that you have disabled IRQ mode.

I suppose, like me, you had problems in this mode. Are you able to use this mode now ?
If yes, I should be happy to know your trick

Frederic

PS : Nice project. I do similar things at owbox.com, especialy internet of things

I’m not sure about the RAM in the tuxgraphics hardware.
The stack it self should run with 2K RAM, but for any (half) serious application you
probably want 4K.

And BTW: your temperatures are also very low.

Can the uIPv6 run on the tuxgraphics hardware?

You could use a laser(or anything else). But 1-wire bus have 2 advantages:
-very low cost(for bus wire and devices).
-parasite power. You can hang thermometers(ex) on the 1-wire bus and they can “steal” power from the bus.

For a wireless approach maybe you should look for ZigBee.

About your problems with 1-wire bus lengths over 15m, did you account for the bus capacitance? Were you using a simple open-drain uC output with a pull-up resistor?
For such long buses you will need higher currents to pull the bus up! There are several Dallas semiconductors AN covering that.

You can decrease the pull-up resistor value(up to half the current drain capability of the uC when in drain mode, otherwise you will be getting problems for push-down phase).
You can switch to a push-pull output.
You can add an active driver with a BJT/FET.

Last option can achieve very long distances.

Probably too much to justify what it’s doing. It was mostly just for fun and sort of a proof-of-concept project.